<template>
    <div class="list" ref="wrapper">
        <div>
            <div class="area">
                <div class="title border-topbottom">当前城市</div>
                <div class="button-list">
                    <div class="button-wrapper">
                        <div class="button">{{this.currentCity}}</div>
                    </div>
                </div>
            </div>
            <div class="area">
                <div class="title border-topbottom">热门城市</div>
                <div class="button-list">
                    <div class="button-wrapper" v-for="item of hot" :key="item.id">
                        <div class="button" @click="handleItemClick(item.name)">{{item.name}}</div>
                    </div>
                </div>
            </div>
            <div v-for="(item, key) of cities" :key="key" :ref="key">
               <div class="title border-topbottom">{{key}}</div>
                <div class="item-list" v-for="item2 of item" :key="item2.id">
                    <div class="item border-bottom" @click="handleItemClick(item2.name)">{{item2.name}}</div>
                </div>
            </div>
        </div>
    </div>
</template>

<script>
    import BScroll from 'better-scroll'
    // eslint-disable-next-line no-unused-vars
    import axios from 'axios'
    import {mapState,mapMutations} from 'vuex'
    export default {
        name: 'CityList',
        props:{
            hot:Array,
            cities:Object,
            letter:String
        },
        computed:{
          ...mapState({
              currentCity:'city'
          })
        },
        methods:{
          handleItemClick(name){
              this.changeCity(name);
              this.$router.push('/')
          },
          ...mapMutations(['changeCity'])
        },
        mounted() {
            const options={
                click:true,
                scrollX:false,
                scrollY:true,
            };
            this.scroll=new BScroll(this.$refs.wrapper,options)
        },
        watch:{
            letter(){
                if(this.letter){
                    //console.log(this.letter);
                    const element=this.$refs[this.letter][0]
                    this.scroll.scrollToElement(element)
                }
            }
        }

    }
</script>

<style lang="stylus" scoped>
    @import "~@/assets/Styles/varibles.styl"
    .border-topbottom
      &:before
         border-color :#ccc
      &:after
         border-color :#ccc
    .border-bottom
      &:before
         border-color :#ccc
    .list
      position :absolute
      overflow :hidden
      top :1.58rem
      left :0
      right :0
      bottom :0
    .title
      line-height:.54rem
      background :#eee
      padding-left :.2rem
      color :#666
      font-size :.26rem
    .button-list
      overflow :hidden
      padding :.1rem .6rem .1rem .1rem
      .button-wrapper
        float :left
        width :30.33%
        .button
            margin: .1rem
            padding: .1rem 0
            text-align: center
            border: .02rem solid #ccc
            border-radius: .06rem
    .item-list
      .item
        line-height :.76rem
        color :$darTextColor
        padding-left :.1rem

</style>
